Many do not spend even 5 hours a week studying. They sleep late, go to the gym, maybe go to class and then party. Go into any CVS near a college campus and compare the length of the candy counter to the length of the personal products counter.
I was a double major in philosophy and history. Junior year I was reading 300 to 600 pages a day. Tough, but I pushed through it. Didn’t make a dime of difference in my life, but it was an interesting time.
Agreed—those are the hours they claim to study.